- Dozer Undercarriage Parts
- Excavator Undercarriage Parts
- Mini Excavator Undercarriage Parts
- Skid Steer Undercarriage Parts
- Crawler Crane Undercarriage Parts
- Morooka Undercarriage Parts
- Crawler Loader Undercarriage Parts
- Sugar cane Harvester Undercarriage Parts
- Agricultural Tractor Undercarriage Parts
- Rubber Tracks
- Bolts&Nuts
- Ground Engaging Tools
- Cutting edges/Blades/End bits
- Hydraulic Cylinders
- Bucket Linkages
- Swing Bearing/Slewing Bearings
- Hydraulic Parts
- Attachments
- Other parts
- Tools
Single Flange Lower Bottom Roller Bulldozer Track Roller for Engineering Construction Machinery
product detail
Product Description
| Material | 50mn, 40mn2 |
| Finish | Smooth |
| Colors | Black, yellow, or customized |
| Technology | Forging/Casting |
| Surface Hardness | HRC55-60, deepth: 8mm-12mm |
| Warranty time | 12 Months |
| Delivery Time | 25-30 days |

We are proud to present an extensive selection of bulldozer undercarriage spare parts, meticulously crafted to guarantee that every essential component of your machinery operates with utmost efficiency and peak performance.
Please be aware that all manufacturer names and symbols are utilized solely for reference purposes, and we do not imply any affiliation or endorsement by these manufacturers.







Quanzhou Zhongkai Machinery (zkmparts/zkucparts), established in 2013 in the vibrant city of Quanzhou, China, is committed to the art of crafting and innovating high-caliber undercarriage parts. Our diverse product line, including track rollers, track chains, idlers, top rollers, and sprocket/segment rims, is designed to fit a variety of machines: excavators, bulldozers, agro tractors, skid steers, and crawler loaders. We are honored to support nearly every leading global brand, offering products that span from compact mini-excavators to formidable mining machines.
Our Exhibition
Why Choose Us?
1. We ensure an unwavering commitment to 100% quality. Whether processing a small, sample order or discussing terms for bulk purchases, we exhibit unparalleled flexibility to meet your needs.
2. Our specialization in a broad spectrum of products for excavators and bulldozers means we deliver precise solutions tailored to your machinery's specific requirements.
3. The assurance of superior quality is backed by a comprehensive warranty, providing you with confidence and peace of mind with every acquisition.
4. Experience the advantage of our top-tier customer service, which expertly guides you through each step of your purchasing journey.
5. Benefit from our competitive pricing strategies that maximize the value of your investment.
6. With a vast inventory readily at hand, we are strategically positioned to fulfill your immediate and urgent requirements with remarkable efficiency.
How could I ensure the part would fit my machinery?
Pls send us the correct model number/machine serial number/ any numbers on the parts itself. Or measure the parts give us dimension or drawing.
What is the payment term?
Generally, 30% deposit T/T in advance, and the balance before the shipment.
What is the lead time?
FOB Xiamen or any Chinese port: 25-30 days. If there are any parts in stock, our delivery time is only 0-7 days.
What kind of package do you offer?
Normally we use the export standard wood pallets. If any special requirements, we can discuss them.
What about Quality Control?
We have a perfect system for checking the quality of our products. Our team checks the products and the way they are made very carefully. They do this at every stage of the production process. This makes sure that the products are safe when they are put in the container.


